Lipoprotein(a) concentrations in Mexican Americans and non-Hispanic whites: the San Antonio Heart Study.

Autor: Haffner SM; Department of Medicine, University of Texas Health Science Center at San Antonio 78284-7873., Gruber KK, Morales PA, Hazuda HP, Valdez RA, Mitchell BD, Stern MP
Jazyk: angličtina
Zdroj: American journal of epidemiology [Am J Epidemiol] 1992 Nov 01; Vol. 136 (9), pp. 1060-8.
DOI: 10.1093/oxfordjournals.aje.a116571
Abstrakt: There is considerable evidence that lipoprotein(a) (Lp(a)) is a strong independent risk factor for coronary heart disease. Based on their risk factor profile, Mexican Americans have an increased risk of coronary heart disease, yet Mexican Americans have coronary heart disease mortality similar to or lower than that of non-Hispanic whites. The authors therefore attempted to determine whether Mexican Americans had decreased Lp(a) concentrations relative to non-Hispanic whites in the San Antonio Heart Study, a population-based study of diabetes and cardiovascular disease. Lp(a) concentrations (mg/dl) were significantly lower in Mexican Americans (n = 316) than in non-Hispanic whites (n = 242) (men: 10.4 vs. 16.3; women: 11.5 vs. 16.4). In addition, the proportion of persons with Lp(a) concentrations of > or = 30 mg/dl (the threshold at which increased risk of coronary heart disease is believed to occur) was significantly higher in non-Hispanic whites than in Mexican Americans (18.6% vs. 7.6%; Mantel-Haenszel odds ratio (adjusted for sex) = 2.79). Age, obesity, body fat distribution, cigarette smoking, alcohol consumption, and glucose and insulin concentrations were not significantly related to Lp(a) levels. Decreased Lp(a) concentrations may account in part for Mexican Americans' relative protection from coronary heart disease mortality.
Databáze: MEDLINE